Dungeon Siege 3 - Interview @ Eurogamer

Eurogamer: Comparisons with Diablo III are inevitable, but are they fair?
Rich Taylor: People will find they're two completely different games. With Dungeon Siege you're going to feel like you're playing an Obsidian RPG in terms of story. You're going to meet NPCs that have quests for you. You're going to have branching dialogues. You're going to have influence with your AI-controlled companions, similar to what we've seen in out other games. So you're going to see a lot of the Obsidian-style RPG mechanics present in Dungeon Siege. It's going to feel more like that.
So while we do have some similar mechanics to Diablo – we have the randomly generated loot – that's really about where the similarities stop. Outside of being a game where you can get a lot of loot and level up and kill monsters, they don't have a lot in common, and people will see that when the game comes out.

On the PC, though, players expect to be able to click and move their character around with the mouse and click on enemies. We'll certainly have it control that way. The interfaces will be mostly the same. The stat comparison available on the console will also be there on the PC. And of course the PC lends itself to higher-resolution textures and visual presentation that we're happy to take advantage of where we can.

With Dungeon Siege you're going to feel like you're playing an Obsidian RPG in terms of story. You're going to meet NPCs that have quests for you. You're going to have branching dialogues. You're going to have influence with your AI-controlled companions, similar to what we've seen in out other games. So you're going to see a lot of the Obsidian-style RPG mechanics present in Dungeon Siege. It's going to feel more like that.

So while we do have some similar mechanics to Diablo – we have the randomly generated loot – that's really about where the similarities stop. Outside of being a game where you can get a lot of loot and level up and kill monsters, they don't have a lot in common, and people will see that when the game comes out.

The more I hear the game wont be a diablo clone the more I want the game.